/Engine/Source/Runtime/SignalProcessing/Public/DSP/SpectrumAnalyzer.h
Class built to be a rolling spectrum analyzer for arbitrary, monaural audio data. Class is meant to scale accuracy with CPU and memory budgets. Typical usage is to either callPushAudio()and then PerformAnalysisIfPossible immediately afterwards, or have a seperate thread callPerformAnalysisIfPossible().
class FSpectrumAnalyzer